# Bluetooth: hci_codec: validate vendor codec count length

CVE record · `CVE-2026-98247`

- **Identifiers:** `CVE-2026-98247`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 6 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 6 Oct 2026, 08:45 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `8961987f3f5fa2f2618e72304d013c8dd5e604a6 to before 9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8` (git)
  - affected: `8961987f3f5fa2f2618e72304d013c8dd5e604a6 to before a6da782fefae611e68a1aa79644065fc8ca5abcd` (git)
  - affected: `8961987f3f5fa2f2618e72304d013c8dd5e604a6 to before e4cfd3c4299105237458b27958bd7b0aa4c60795` (git)
  - affected: `8961987f3f5fa2f2618e72304d013c8dd5e604a6 to before f49a543d76d48f184b34225d9c0e2fc4cbdea8ec` (git)
  - affected: `8961987f3f5fa2f2618e72304d013c8dd5e604a6 to before 12a82819b0cada6e304790b1097f8f9006eb6123` (git)
  - affected: `8961987f3f5fa2f2618e72304d013c8dd5e604a6 to before d0795cfd6f655f4de84868a4f4bb41a03f037b3d` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.16`
  - unaffected: `before 5.16` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.54 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.8 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 11th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 6 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98247](https://www.cve.org/CVERecord?id=CVE-2026-98247)
- [NVD: CVE-2026-98247](https://nvd.nist.gov/vuln/detail/CVE-2026-98247)

### References from the CNA

- <https://git.kernel.org/stable/c/9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8>
- <https://git.kernel.org/stable/c/a6da782fefae611e68a1aa79644065fc8ca5abcd>
- <https://git.kernel.org/stable/c/e4cfd3c4299105237458b27958bd7b0aa4c60795>
- <https://git.kernel.org/stable/c/f49a543d76d48f184b34225d9c0e2fc4cbdea8ec>
- <https://git.kernel.org/stable/c/12a82819b0cada6e304790b1097f8f9006eb6123>
- <https://git.kernel.org/stable/c/d0795cfd6f655f4de84868a4f4bb41a03f037b3d>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-98247>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98247/>. Everything for agents: <https://agentprime.io/llms.txt>.